Aljazeera.com is the main web address for the Al Jazeera English, Al Jazeera Balkans and Al Jazeera America websites. The domain name was acquired by Al Jazeera Media Network in March 2011 from Aljazeera Publishing, a Dubai-based media company which owned the separate Aljazeera Magazine, after a long-running domain name dispute between the two entities. Al Jazeera English began promoting aljazeera.com instead of aljazeera.net/english since the domain name became part of Al Jazeera English. It is also used and subdivided as the homepage for the channels of Al Jazeera America and Al Jazeera Balkans. Al Jazeera Media Network also owns the original Aljazeera.net for their Arabic language channels and properties and Aljazeera.tr for their Turkish language properties including Al Jazeera Turk.

Until March 2011, aljazeera.com was an English language website for Aljazeera Magazine, which was unrelated to the Arabic satellite TV channel Al Jazeera; the latter operated websites in both Arabic (www.aljazeera.net) and English (english.aljazeera.net). It was also unrelated to Al Jazeera Newspaper of Saudi Arabia. According to Alexa, there were fewer visitors to aljazeera.com in comparison to aljazeera.net. The former website was operated by Aljazeera Publishing, described as an "independent media organisation."